/*
 * Copyright @ 2006-2009 by The Jxva Framework Foundation
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
package org.richin.exception;

import java.io.PrintStream;
import java.io.PrintWriter;

/**
 * The base class of all errors which can contain other exceptions.
 * @see com.jxva.exception.NestableException
 * @author  The Jxva Framework
 * @since   1.0
 * @version 2008-11-27 09:29:36 by Jxva
 */
public class NestableError extends Error implements Nestable {

    private static final long serialVersionUID = 1L;

    protected NestableDelegate delegate = new NestableDelegate(this);

    private Throwable cause;

    public NestableError() {
        super();
    }

    public NestableError(String msg) {
        super(msg);
    }

    public NestableError(Throwable cause) {
        super();
        this.cause = cause;
    }

    public NestableError(String msg, Throwable cause) {
        super(msg);
        this.cause = cause;
    }


    public Throwable getCause() {
        return cause;
    }

    public String getMessage() {
        if (super.getMessage() != null) {
            return super.getMessage();
        } else if (cause != null) {
            return cause.toString();
        } else {
            return null;
        }
    }

    public String getMessage(int index) {
        if (index == 0) {
            return super.getMessage();
        }
        return delegate.getMessage(index);
    }

    public String[] getMessages() {
        return delegate.getMessages();
    }

    public Throwable getThrowable(int index) {
        return delegate.getThrowable(index);
    }

    public int getThrowableCount() {
        return delegate.getThrowableCount();
    }

    public Throwable[] getThrowables() {
        return delegate.getThrowables();
    }

    public int indexOfThrowable(Class<?> type) {
        return delegate.indexOfThrowable(type, 0);
    }

    public int indexOfThrowable(Class<?> type, int fromIndex) {
        return delegate.indexOfThrowable(type, fromIndex);
    }

    public void printStackTrace() {
        delegate.printStackTrace();
    }

    public void printStackTrace(PrintStream out) {
        delegate.printStackTrace(out);
    }

    public void printStackTrace(PrintWriter out) {
        delegate.printStackTrace(out);
    }

    public final void printPartialStackTrace(PrintWriter out) {
        super.printStackTrace(out);
    }
}
